What is the principle of laser welding?
Release time:
2023-02-10
【Summary Description】 Laser welding What is the principle of laser welding? Laser welding is the use of high-energy laser pulses to heat the material locally in a small area, and the energy of the laser radiation is diffused to the inside of the material through heat conduction, and the material is melted to form a specific molten pool. It is a new type of welding method. Laser welding is mainly aimed at the welding of thin-walled materials and precision parts. It can realize spot welding, butt welding, lap welding, seal welding, etc., with high aspect ratio, small weld width, small heat affected zone, small deformation, fast welding speed, smooth and beautiful weld seam, no need or simple treatment after welding, high weld quality, no pores, and precise control, the focus spot is small, the positioning accuracy is high, and it is easy to realize automation. Laser welding is an efficient and precise welding method using a laser beam with high energy density as a heat source. Laser welding is one of the important aspects of laser material processing technology. In the 1970 s, it was mainly used for welding thin-walled materials and low-speed welding. The welding process was heat conduction type, that is, the surface of the workpiece was heated by laser radiation, and the surface heat was diffused to the inside through heat conduction. By controlling the width, energy, peak power and repetition frequency of the laser pulse, the workpiece was melted and a specific molten pool was formed. Because of its unique advantages, it has been successfully applied to the precision welding of micro and small parts. China's laser welding is at the world's advanced level. It has the technology and ability to use laser to form more than 12 square meters of complex titanium alloy components, and has invested in the prototype and product manufacturing of many domestic aviation research projects. In October, China's welding experts won the highest academic award in the field of welding-Brook Award, China's laser welding level has been recognized by the world.
laser welding
What is the principle of laser welding?
Laser welding is the use of high-energy laser pulses to heat the material locally in a small area, and the energy of the laser radiation is diffused to the inside of the material through heat conduction, and the material is melted to form a specific molten pool.
It is a new type of welding method. Laser welding is mainly aimed at the welding of thin-walled materials and precision parts. It can realize spot welding, butt welding, lap welding, seal welding, etc., with high aspect ratio, small weld width, small heat affected zone, small deformation, fast welding speed, smooth and beautiful weld seam, no need or simple treatment after welding, high weld quality, no pores, and precise control, the focus spot is small, the positioning accuracy is high, and it is easy to realize automation.
Laser welding is an efficient and precise welding method using a laser beam with high energy density as a heat source. Laser welding is one of the important aspects of laser material processing technology.
In the 1970 s, it was mainly used for welding thin-walled materials and low-speed welding. The welding process was heat conduction type, that is, the surface of the workpiece was heated by laser radiation, and the surface heat was diffused to the inside through heat conduction. By controlling the width, energy, peak power and repetition frequency of the laser pulse, the workpiece was melted and a specific molten pool was formed. Because of its unique advantages, it has been successfully applied to the precision welding of micro and small parts.
China's laser welding is at the world's advanced level. It has the technology and ability to use laser to form more than 12 square meters of complex titanium alloy components, and has invested in the prototype and product manufacturing of many domestic aviation research projects.
In October, China's welding experts won the highest academic award in the field of welding-Brook Award, China's laser welding level has been recognized by the world.
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